JP4558372B2 - 多数個構成の部材を有するコリメータ・アセンブリ - Google Patents
多数個構成の部材を有するコリメータ・アセンブリ Download PDFInfo
- Publication number
- JP4558372B2 JP4558372B2 JP2004135242A JP2004135242A JP4558372B2 JP 4558372 B2 JP4558372 B2 JP 4558372B2 JP 2004135242 A JP2004135242 A JP 2004135242A JP 2004135242 A JP2004135242 A JP 2004135242A JP 4558372 B2 JP4558372 B2 JP 4558372B2
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- array
- collimator
- shielding
- scintillator
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 2
- 239000012790 adhesive layer Substances 0.000 claims description 2
- 238000003486 chemical etching Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000002591 computed tomography Methods 0.000 description 40
- 238000003491 array Methods 0.000 description 8
- 230000005855 radiation Effects 0.000 description 7
- 238000000333 X-ray scattering Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 6
- 229910052721 tungsten Inorganic materials 0.000 description 6
- 239000010937 tungsten Substances 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- 230000002238 attenuated effect Effects 0.000 description 4
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- 230000007246 mechanism Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013170 computed tomography imaging Methods 0.000 description 2
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- CVOFKRWYWCSDMA-UHFFFAOYSA-N 2-chloro-n-(2,6-diethylphenyl)-n-(methoxymethyl)acetamide;2,6-dinitro-n,n-dipropyl-4-(trifluoromethyl)aniline Chemical compound CCC1=CC=CC(CC)=C1N(COC)C(=O)CCl.CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O CVOFKRWYWCSDMA-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000010884 ion-beam technique Methods 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/164—Scintigraphy
- G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
- G01T1/1648—Ancillary equipment for scintillation cameras, e.g. reference markers, devices for removing motion artifacts, calibration devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/06—Diaphragms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
- A61B6/4233—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using matrix detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
- G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/419—Imaging computed tomograph
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/60—Specific applications or type of materials
- G01N2223/612—Specific applications or type of materials biological material
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Measurement Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
3 シンチレータ
4 シンチレータ・アレイ
5 フォトダイオード・アレイ
6 反射体要素
7 反射体層
8 コリメータ・プレート
9 コリメータ・アセンブリ
10、100 CTシステム
12、102 ガントリ
14、106 X線源
16 X線ビーム
18、108 検出器アレイ
20 検出器
22 患者
24 回転中心
26 制御機構
42 表示器
46 モータ式載置台
48、104 ガントリ開口
52 フォトダイオード・アレイ
56 シンチレータ・アレイ
57 シンチレータ
60 フォトダイオード
77 検出器フレーム
79 装着用ブラケット
80、82 スイッチ・アレイ
84 可撓性電気インタフェイス
86 多数個構成の要素
88 コリメート用部材
90 遮蔽用部材
110 コンベヤ・システム
112 コンベヤ・ベルト
114 支持構造
116 対象(手荷物、小荷物)
Claims (7)
- 個別検出器セル最適化を有するCT検出器アレイの製造方法であって、
複数のシンチレータを画定するシンチレータ・パックを形成する工程と、
複数の遮蔽用要素が前記シンチレータ・パック上で投射経路に沿って突出するように、前記複数のシンチレータを画定する反射体の上に遮蔽用要素を複数設置し、前記複数の遮蔽用要素を前記シンチレータ・パックに固定する工程と、
コリメータ要素のアレイを形成する工程と、
各々のコリメータ要素がシンチレータの間に設置された対応する遮蔽用要素と全体的に位置合わせされるようにアレイを位置合わせする工程と、
フォトダイオード・アレイを前記シンチレータ・パックに結合させる工程と、
を含む方法。 - 前記遮蔽用要素と前記コリメータ要素とを互いに連結する工程を含み、
前記複数の遮蔽用要素の各々は投射経路に平行な方向で前記コリメータ要素の幅よりも広い幅を有している、請求項1に記載の方法。 - 前記コリメータ要素の幅が25ミクロン以下であり、前記複数の遮蔽用要素は複合材又は鋳造材料から形成される、請求項2に記載の方法。
- 前記複数の遮蔽用要素は、金属添加エポキシ、鉛又は鉛合金で構築される、請求項1に記載の方法。
- 前記複数の遮蔽用要素は化学的な蝕刻により形成される、請求項1に記載の方法。
- 前記複数の遮蔽用要素は接着層により前記シンチレータ・パックに固定される、請求項1に記載の方法。
- 前記遮蔽用要素と前記コリメータ要素とは独立している請求項1乃至6のいずれかに記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/249,714 US6934354B2 (en) | 2003-05-02 | 2003-05-02 | Collimator assembly having multi-piece components |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004329931A JP2004329931A (ja) | 2004-11-25 |
JP2004329931A5 JP2004329931A5 (ja) | 2009-07-02 |
JP4558372B2 true JP4558372B2 (ja) | 2010-10-06 |
Family
ID=33309339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004135242A Expired - Fee Related JP4558372B2 (ja) | 2003-05-02 | 2004-04-30 | 多数個構成の部材を有するコリメータ・アセンブリ |
Country Status (4)
Country | Link |
---|---|
US (2) | US6934354B2 (ja) |
JP (1) | JP4558372B2 (ja) |
CN (1) | CN100500097C (ja) |
NL (1) | NL1026071C2 (ja) |
Families Citing this family (50)
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CA2448736C (en) | 2001-06-05 | 2010-08-10 | Mikro Systems, Inc. | Methods for manufacturing three-dimensional devices and devices created thereby |
US8275091B2 (en) | 2002-07-23 | 2012-09-25 | Rapiscan Systems, Inc. | Compact mobile cargo scanning system |
US7963695B2 (en) | 2002-07-23 | 2011-06-21 | Rapiscan Systems, Inc. | Rotatable boom cargo scanning system |
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US8804899B2 (en) | 2003-04-25 | 2014-08-12 | Rapiscan Systems, Inc. | Imaging, data acquisition, data transmission, and data distribution methods and systems for high data rate tomographic X-ray scanners |
US8223919B2 (en) | 2003-04-25 | 2012-07-17 | Rapiscan Systems, Inc. | X-ray tomographic inspection systems for the identification of specific target items |
US7949101B2 (en) | 2005-12-16 | 2011-05-24 | Rapiscan Systems, Inc. | X-ray scanners and X-ray sources therefor |
US8837669B2 (en) | 2003-04-25 | 2014-09-16 | Rapiscan Systems, Inc. | X-ray scanning system |
GB0525593D0 (en) | 2005-12-16 | 2006-01-25 | Cxr Ltd | X-ray tomography inspection systems |
US8451974B2 (en) | 2003-04-25 | 2013-05-28 | Rapiscan Systems, Inc. | X-ray tomographic inspection system for the identification of specific target items |
US9113839B2 (en) | 2003-04-25 | 2015-08-25 | Rapiscon Systems, Inc. | X-ray inspection system and method |
US7112797B2 (en) * | 2003-04-30 | 2006-09-26 | General Electric Company | Scintillator having integrated collimator and method of manufacturing same |
US7655915B2 (en) * | 2003-05-13 | 2010-02-02 | General Electric Company | Collimator assembly for computed tomography system |
US20040251420A1 (en) * | 2003-06-14 | 2004-12-16 | Xiao-Dong Sun | X-ray detectors with a grid structured scintillators |
US6928141B2 (en) | 2003-06-20 | 2005-08-09 | Rapiscan, Inc. | Relocatable X-ray imaging system and method for inspecting commercial vehicles and cargo containers |
US7199369B1 (en) * | 2003-07-16 | 2007-04-03 | Met One Instruments, Inc. | Low threshold level radiation detector |
US7564940B2 (en) * | 2003-07-22 | 2009-07-21 | Koninklijke Philips Electronics N.V. | Radiation mask for two dimensional CT detector |
JP3961468B2 (ja) * | 2003-09-19 | 2007-08-22 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 放射線計算断層画像装置およびそれに用いる放射線検出器 |
US7076029B2 (en) * | 2003-10-27 | 2006-07-11 | General Electric Company | Method and apparatus of radiographic imaging with an energy beam tailored for a subject to be scanned |
US7495225B2 (en) * | 2004-12-08 | 2009-02-24 | General Electric Company | Methods and apparatus for pixilated detector masking |
US7471764B2 (en) | 2005-04-15 | 2008-12-30 | Rapiscan Security Products, Inc. | X-ray imaging system having improved weather resistance |
US7521685B2 (en) * | 2006-01-18 | 2009-04-21 | General Electric Company | Structured scintillator and systems employing structured scintillators |
US7544947B2 (en) * | 2006-03-08 | 2009-06-09 | Aeroflex Colorado Springs Inc. | Cross-talk and back side shielding in a front side illuminated photo detector diode array |
US7869573B2 (en) * | 2007-12-27 | 2011-01-11 | Morpho Detection, Inc. | Collimator and method for fabricating the same |
GB0803644D0 (en) | 2008-02-28 | 2008-04-02 | Rapiscan Security Products Inc | Scanning systems |
GB0803641D0 (en) | 2008-02-28 | 2008-04-02 | Rapiscan Security Products Inc | Scanning systems |
US8873703B2 (en) * | 2008-05-08 | 2014-10-28 | Arineta Ltd. | X ray imaging system with scatter radiation correction and method of using same |
GB0809110D0 (en) | 2008-05-20 | 2008-06-25 | Rapiscan Security Products Inc | Gantry scanner systems |
EP2559534B1 (en) | 2008-09-26 | 2023-10-25 | Raytheon Technologies Corporation | Composition and method for casting manufacturing |
US9601223B2 (en) * | 2009-07-21 | 2017-03-21 | Analogic Corporation | Anti-scatter grid or collimator |
DE102010020610A1 (de) * | 2010-05-14 | 2011-11-17 | Siemens Aktiengesellschaft | Strahlendetektor und Verfahren zur Herstellung eines Strahlendetektors |
US9218933B2 (en) | 2011-06-09 | 2015-12-22 | Rapidscan Systems, Inc. | Low-dose radiographic imaging system |
JP2013040859A (ja) * | 2011-08-17 | 2013-02-28 | Toshiba Corp | X線検出器及びx線ct装置 |
JP2015501435A (ja) * | 2011-11-02 | 2015-01-15 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニーJohnson Matthey Publiclimited Company | スキャン方法及び装置 |
US8813824B2 (en) | 2011-12-06 | 2014-08-26 | Mikro Systems, Inc. | Systems, devices, and/or methods for producing holes |
JP5943758B2 (ja) * | 2012-07-24 | 2016-07-05 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | コリメータモジュール、放射線検出装置および放射線断層撮影装置 |
CN103829963B (zh) * | 2012-11-27 | 2018-02-23 | Ge医疗***环球技术有限公司 | 准直仪及包含该准直仪的ct*** |
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CN104688255A (zh) * | 2013-12-09 | 2015-06-10 | 通用电气公司 | 光探测器、x射线检测装置和计算机化断层扫描设备 |
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RU2695099C2 (ru) * | 2014-12-31 | 2019-07-19 | Тсинхуа Юниверсити | Устройство контроля интенсивности рентгеновского пучка и система контроля рентгеновского излучения |
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CN109674488A (zh) * | 2019-01-22 | 2019-04-26 | 淇淩智能科技(上海)有限公司 | 一种轻便型射线自保护防辐射装置 |
CN112113986A (zh) * | 2019-06-21 | 2020-12-22 | 同方威视技术股份有限公司 | 后准直器、探测器装置及扫描设备 |
JP6976306B2 (ja) * | 2019-12-25 | 2021-12-08 | ゼネラル・エレクトリック・カンパニイ | コリメータモジュール、医用装置、およびコリメータモジュールの製造方法 |
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JPH11218578A (ja) * | 1998-02-02 | 1999-08-10 | Shimadzu Corp | Ct用固体検出器 |
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-
2003
- 2003-05-02 US US10/249,714 patent/US6934354B2/en not_active Expired - Lifetime
-
2004
- 2004-04-23 CN CN200410035065.6A patent/CN100500097C/zh not_active Expired - Fee Related
- 2004-04-28 NL NL1026071A patent/NL1026071C2/nl not_active IP Right Cessation
- 2004-04-30 JP JP2004135242A patent/JP4558372B2/ja not_active Expired - Fee Related
-
2005
- 2005-04-19 US US10/907,886 patent/US7010083B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH08243098A (ja) * | 1995-03-10 | 1996-09-24 | Hitachi Medical Corp | X線ct装置 |
JPH11218578A (ja) * | 1998-02-02 | 1999-08-10 | Shimadzu Corp | Ct用固体検出器 |
Also Published As
Publication number | Publication date |
---|---|
JP2004329931A (ja) | 2004-11-25 |
NL1026071C2 (nl) | 2006-02-13 |
CN100500097C (zh) | 2009-06-17 |
NL1026071A1 (nl) | 2004-11-03 |
US20050169430A1 (en) | 2005-08-04 |
US20040218713A1 (en) | 2004-11-04 |
CN1541620A (zh) | 2004-11-03 |
US7010083B2 (en) | 2006-03-07 |
US6934354B2 (en) | 2005-08-23 |
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